I’m more invested in how he copes and grows moving forward, rather than him just learning to let go of a lifelong grudge. I’ve never been a fan of the 'forgiving your enemy sets you free' trope anyway.
To be honest, I have no complaints about ep13 (it was way better than what I expected after ep11 & 12). People keep saying Victim’s character development was wasted when Mitsi revived. Well, I see it more as his backstory rather than his actual development.